Improvement in locks for fire-arms



mammina. Locks for Fire-Arms.-

No. 145,]8, Patented Dec. 2,1873.

Ulvrrnn STATES Plrlrnvcr OFFICE..-

DANIEL MOORE, OF BROOKLYN, E. D., NEW YORK.

IMPROVEMENT IN LCCKS FOR FIRE-ARMS.

Specification forming part of Letters Patent No. 145,118, dated December2, 1873; application filed September 27, 1873.

To all whom t may concern:

Be it known that I, DANIEL MOORE, of Brooklyn, E. D., in the county ofKings and State ot' New York, have invented an Improvement in Locks forFire-Arms, of which the following is a correct description:

Ordinary gun-locks are provided with a scar or catch, taking the halt1or whole cock notch in the hammer-tumbler. These are objectionable. Theclick of the lock in cooking often disturbs the game when hunting, orbetrays the position of a picket or sentinel. Besides this, the edge ot'the notch and the end of the scar wear away in consequence of inequalityoi' hardness n the metal, and often the half-cock notch is caught by thesear, and either one part or the other is broken. Accidental dischargesoften take place by the hammer being caught or struck and knocked downupon the cap, the tumbler-notch being worn or injured. When at thefull-cock the tumbler is very liable to slip past the scar if the hammeris accidentally struck, because the notch of the tumbler is shallow toinsure ease in tiring, and the edge liable to be worn round. It' thenotch of the tumbler is deep, the piece is difficult to discharge, thepull on the trigger often destroying the correct aim.

In my improved lock these difficulties are avoided. lhe lock issubstantially noiseless,

and accidental discharge is rendered impossi- The wear upon the parts isvery slight,

ble. and it is in such a direction that the surfaces are kept in properoperative condition, and there is no tendency to catch or break theedges of the scar or tumbler, as in the ordinary locks.

I make use of a toggle blocking-piece between the sear and the hammer,which piece is turned up to place by the end of the sear, and blocks thehammer, and prevents it moving in either direction. When the trigger ispulled the sear is moved to a point where the blocking-piece swings bythe action of the mainspring of the lock, and, in so doing, presses thescar away by a toggle action, the surfaces in contact swinging in thesame di 'ection, instead of scraping, as in the ordinary ock.

In the drawing, Figure l represents the im proved lock as at full-cock,and Fig. 2 repre sents the parts with the hammer discharged.

The lock-plate a, mainspring b, and hammer c are of usual construction;and Iremark that the parts constituting my improvement are especiallyavailable in revolving {ire-arms and pistols, where the lock-plate a isnot ofthe character shown. The sear e and scar-spring f are operatedupon by any desired trigger, and the blocking-piece i is upon ascrew orfulcrum, 2, and is located between the end of the sear e and the tumblerr ot' the hammer c.

It will be evident that when the parts are in the position shown in Fig.2 the blockingpiece i rests at one side against the circular portion 3of the hammer-tumbler, and that, as soon as the hammer is pulled backsuliicient-ly, the-scar turns the blockingpiece t' up into the notch 5of the hammer-tumbler, and then the end of the sear comes up against theoppositeside of this blocking-piece i; hence it is limpossible to movethe hammer in either direction, and the piece is perfectly safe againstaccidental discharge, except by a pull upon the trigger.

A considerable amount of movement of the Sear and trigger can be allowedwith impunity, because the end of the sear slides against the side ofthe blocking-piece without any other part moving; but when the searreaches that point upon the side of the blocking-piece where themainspring has greater power to turn said blocking-piece than the scarhas power to resist, then the blocking-pieceswin gs back out of the wayof the hammer-tumbler into the position of Fig. 2, turning with it thesear; and then there is nothing but a very slight pressure against thehammer-tumbler during the descent ot' the hammer for exploding the cap.

A half-cock notch is not required, but it may be used. I remark thatwhen used the hammer will require to be lowered, and the trigger heldwhile the hammer-tumbler is moved, so that the half-cock notch movespast the blocking-piece i; otherwise the hammer could not be moved froma half-cock to fullcock, because the blocking-piece' prevents motion ineither direction. If, however, the blocking-piece t is provided with aspring to return it to place, the said blocking-piece may notch of thehammer-tumbler,constructed and be moved aside in passing from half tofull oook, operating substantially as set forth. there being a @am onthe hammer-tumbler at Signed by me this 24th day of September, thispoint to give the lateral or swinging' move- 1873. ment 1:0 theblocking-piece. Witnesses: DANL. MOORE.

I claim as my invention- GEO. T. PINCKNEY,

A blocking-piece, fi, between the Sear e and CHAS. H. SMITH.

